Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2009, Vol. 30 ›› Issue (1): 1-4+12.DOI: -

• OriginalPaper •     Next Articles

Chaos control of a class of delayed ecological models

Fu, Jing-Chao (1); Jing, Yuan-Wei (1); Zhang, Zhong-Hua (1); Zhang, Si-Ying (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China; (2) College of International Exchange, Northeast Dianli University, Jilin 132012, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-01-15 Published:2013-06-22
  • Contact: Fu, J.-C.
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Abstract: To a class of delayed population ecological models, the presence of chaotic phenomena in those models are validated simply and visually by numerical simulation to give the time-dependent graphs of Lyapunov exponents. Then, introducing the improved straight-line stabilization method to control the chaotic phenomena in the models, a controller is designed to stabilize the biological population in the orbits where the fixed points lie on, thus eliminating the chaotic phenomena in population to keep the population system in persistent existence. The validity of the controller is confirmed by simulation results.

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